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What to do when your personal computer’s cursor grows big and grows small, some letters font appear and suddenly disappears on its own. Your graphics go crazy. Most of the time, when these strange things happen, the culprit is the graphics card driver. This is the program that allows the harwdware to work with the operating system. The first thing to do is make sure that the graphicsdriver is the reason behind this. You’ll need to install the Windows VGA driver. On the desktop, right click, click Properties, click Settings, click Advanced, click Adapter. Then select Change, the Update Wizard will open. Select Display a List, click on Show all Hardware. You’ll see Manufacturer’s, then select Standard display types and then install the VGA driver.